Oki ML1120 - Set Immediate Double Width Characters; Reset Immediate Double Width Characters

Technical Reference Guide – Command descriptions > 151
> Function:
Characters received after this command will be printed in
double width for the length of the line.
> Additional details:
The double width characters are only printed for the length
of one line and then the printer returns to the previous
mode.
> Related functions:
If SO and ESC W 1 are active, ESC W 1 will take
precedence.
SO can be cancelled by DC4, ESC W 0, ESC ! n, LF or CR +
FF.
S ET IMMEDIATE DOUBLE WIDTH CHARACTERS
> Code: ESC SO
> Compatibility:
ML1190 eco: EPSON LQ
ML1120 eco: EPS FX
> Function:
Characters received after this command will be printed in
double width for the length of the line.
> Additional details:
The double width characters are only printed for the length
of one line and then the printer returns to the previous
mode.
> Related functions:
This function duplicates the SO command.
R ESET IMMEDIATE DOUBLE WIDTH CHARACTERS
> Code: DC4
> Compatibility:
ML1190 eco: EPSON LQ/IBM